tributary

A Sepa spokesman said: "We are investigating a potential pollution incident in a tributary of the River Spey and are working to identify the source and impacts."

From BBC ● May 3, 2026

The tributary of the Potomac River cutting across the land was called Tiber Creek after the river that flowed through the Eternal City.

From The Wall Street Journal ● Jan. 20, 2026

The 500-million-euro Achelous tributary project is to be completed by 2029.

From Barron's ● Nov. 29, 2025

An above-ground storage tank operated by Carbon California spilled the oil into a remote tributary of Sisar Creek near Ojai, contaminating about three-quarters of a mile of the waterway, according to state wildlife officials.

From Los Angeles Times ● Nov. 20, 2025

The boats headed downstream, and we were let off near a tributary.

From "A Long Way Gone: Memoirs of a Boy Soldier" by Ishmael Beah

Hazmat materials got dumped right into rivers and tributaries.

From Los Angeles Times ● Jul. 15, 2026

Producing rare earths requires heavy chemicals and can produce toxic waste, with cases including illegal operations polluting Mekong tributaries in Myanmar, Laos and Cambodia with arsenic and cadmium.

From Barron's ● Apr. 22, 2026

The Colorado River and its network of tributaries supply water to seven U.S. states and Mexico, supporting drinking water, farming, and hydropower.

From Science Daily ● Apr. 14, 2026

In one example among many, beginning in 2002 the IRGC’s Qomrud project diverted water from tributaries of the Dez River, flowing through southwestern Iran, to the religious power center of Qom in central Iran.

From The Wall Street Journal ● Nov. 16, 2025

Goblets lie on their side, mead pooling to run over the uneven floor like tributaries into great honey-wine lakes.

From "The Cruel Prince" by Holly Black